Felicity Jones, in Alexander McQueen, with Van Cleef & Arpels jewels

Gwyneth Paltrow, in Ralph & Russo

Nicole Kidman, in Louis Vuitton, with Harry Winston jewels

Reese Witherspoon, in Tom Ford, with Tiffany & Co. jewels

Emma Stone, in Elie Saab Haute Couture

Scarlett Johansson, in Atelier Versace

Lady Gaga, in Alaïa, with Lorraine Schwartz jewels

Jennifer Lopez, in Elie Saab Haute Couture

Julianne Moore, in Chanel Haute Couture

Dakota Johnson, in Saint Laurent, with Forevermark jewels

Marion Cotillard, in Dior Haute Couture

Patricia Arquette, in Rosetta Getty, with a Salvatore Ferragamo clutch

Rita Ora, in custom Marchesa, with Lorraine Schwartz jewels

Anna Kendrick, in custom Thakoon

Rosamund Pike, in custom Givenchy Haute Couture, with Lorraine Schwartz jewels

Behati Prinsloo, in Armani Privé, and Adam Levine, in Giorgio Armani

Sienna Miller, in Oscar de la Renta, with Forevermark jewels

Jessica Chastain, in custom Givenchy Haute Couture

Meryl Streep, in Lanvin, with a Salvatore Ferragamo clutch

Keira Knightley, in Valentino Haute Couture, with Chanel Fine jewels

Karolina Kurkova, in Marchesa, with Harry Winston jewels and Jimmy Choo shoes

David Burtka and Neil Patrick Harris, in Ermenegildo Zegna Couture

Margot Robbie, in Saint Laurent, with Van Cleef & Arpels jewels

Hannah Bagshawe and Eddie Redmayne, both in Alexander McQueen

Zoe Saldana, in Atelier Versace

Lupita Nyong'o, in custom Calvin Klein Collection

Chrissy Teigen, in Zuhair Murad Haute Couture, and John Legend, in Gucci

J.K. Simmons and Michelle Schumacher

Naomi Watts, in Armani Privé

Kerry Washington, in Miu Miu

Chloë Grace Moretz, in Miu Miu, with Forevermark jewels

Laura Dern, in Alberta Ferretti

Michael Keaton, in Ralph Lauren Black Label

Justin Theroux, in Dolce & Gabbana, and Jennifer Aniston, in Atelier Versace

Clint Eastwood, in Giorgio Armani, and Bradley Cooper, in custom Salvatore Ferragamo

Sunrise Coigney and Mark Ruffalo, in Ermenegildo Zegna Couture

Channing Tatum, in Dolce & Gabbana, and Jenna Dewan-Tatum, in Zuhair Murad Haute Couture, with Lorraine Schwartz jewels and a Lee Savage clutch

Oprah Winfrey, in custom Vera Wang, with Lorraine Schwartz jewels

Jared Leto, in Givenchy

Rene Russo, in J. Mendel

Harvey Weinstein and Georgina Chapman, in Marchesa

Jennifer Hudson, in Romona Keveza, with Lorraine Schwartz jewels

Kelly Preston and John Travolta

Alejandro González Iñárritu and Maria Eladia Hagerman

Luciana Duvall and Robert Duvall, in Ermenegildo Zegna

Adrien Brody, in Dolce & Gabbana

Ava DuVernay, in Prada

Sophie Hunter, in Lanvin, and Benedict Cumberbatch

Nancy Carell, in Monique Lhuillier, and Steve Carell

Edward Norton, in Calvin Klein Collection, and Shauna Robertson

Solange Knowles, in Christian Siriano